Battery pack



FIG. 1 is a perspective view of a battery pack;

FIG. 2 is a front view of the battery pack;

FIG. 3 is a side view of the battery pack;

FIG. 4 is a top view of the battery pack;

FIG. 5 is a bottom view of the battery pack; and,

FIG. 6 is a rear view of the battery pack.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the battery pack and form no part of the claimed design. 

CLAIM The ornamental design for a battery pack, as shown and described. 